Paper Conference

Proceedings of eSim 2022: 12th Conference of IBPSA-Canada


Potential of sensible thermal storage systems with or without heat pumps for reducing peak and annual electrical demand for space heating and hot water heating in Canadian homes

Sebastien Brideau
Natural Resources Canada, Canada

Abstract: This paper presents a preliminary analysis of five simple methods of reducing annual electrical demand and/or peak electrical demand due to space heating (SH) and domestic hot water (DHW) heating in Canada. The five systems are compared against a baseline of electric resistance SH and DHW. Four of the systems are variations of sensible storage systems with and without heat pumps. The last system is a cold climate air source heat pump (CCASHP). These systems are evaluated across three Canadian climates (Winnipeg, Toronto, and Vancouver) and three archetypes (pre-1980, post-1980, and Net-Zero Energy Ready). Using simulated results, load duration curves, peak day load profiles and annual electricity consumption are presented. It is found that in a mild climate a CCASHP is a good approach for energy savings and reducing peaks. In colder climates, a combination of storage and heat pump is required to reach both goals.
Keywords: Thermal Storage, Space Heating, Domestic Hot Water, Heat Pump, Peak Load Reduction